Using the pulse, they scanned over ten million different quantum states within the fissure, in an attempt to locate the quantum state which shared a specific quantum signature with LieutenantWorf, who had been shifting between quantum realities due to an encounter with the fissure. Later, after coming under attack from a Bajoran vessel, the subspace pulse experienced an energy surge, destabilizing the fissure. This had the effect of breaking down the barriers between quantum universes, causing approximately 285,000 different quantum versions of the Enterprise to emerge from their respective realities. (TNG: "Parallels")